CHART OF THE DAY: Watch As Yahoo's Business Gradually Becomes Worthless

Activist hedge funder Dan Loeb created this chart which shows the diminishing value of Yahoo's core business over the last seven years.

He says the core businesses value has gone from $30 billion in 2008 based on the Microsoft buyout offer to $2 billion in the last six and half years.

Loeb arrived at the value for Yahoo's core business by backing out the value of its cash, its stake in Alibaba (after taxes), and Yahoo Japan (after taxes). Importantly, this isn't necessarily a reflection of the true value of the business, just what the market thinks, says Loeb.